P
OWER
E
DGER
O
PERATOR
'
S
M
ANUAL
19
CARBURETOR
ADJUSTMENT
Engine Break-In
New engines must be operated for a minimum of two tanks of fuel before
carburetor adjustments can be made. During the break-in period, your
engine performance will increase and exhaust emissions will stabilize.
Idle speed can be adjusted as required.
High Altitude Adjustment
High altitude adjustment is not required for proper operation of this
engine.
Idle Speed Adjustment
Idle speed adjustment may be required periodically to comply with
specifications for this unit. See page 9, "Specifications," for correct idle
speed.
Level 2.
Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017).
NOTE
Every unit is run at the factory and the carburetor is set in compli-
ance with emission regulations. This carburetor does not have
acceleration and high speed adjustment needles.
1.
Check idle speed using a tachometer, and reset if necessary. Turn
idle screw (A) clockwise to increase idle speed; counter clockwise
to decrease idle speed.
WARNING
DANGER
When carburetor adjustment is completed, the cutting attachment
should not turn at idle, otherwise serious personal injury may
result.
LUBRICATION
Level 1.
Tools Required:
Scrench, Locking Tool, Screwdriver, 8 mm Open End
Wrench
Parts Required:
Echo Lube
TM
8 oz. (P/N 91014) or Lithium Base
Grease, Blade
NOTE
Grease gear case every 50 hours of use. Replace blade when it is
worn shorter than 6 inches. Remove blade and holders before
greasing to prevent damage to gear and bearings.
1.
Shut engine off.
A
